Modular approach cuts scrubber retrofit time
Damen Green Solutions (DGS) has partnered with Damen Shiprepair & Conversion (DSC) and scrubber supplier AEC to trial a new time-saving technique for retrofitting scrubbers.
The modular approach is designed to reduce ships’ downtime from two or more weeks to a few days.
The process aims to reduce downtime by simultaneously fitting the scrubbers and their supporting systems into two prefabricated modules in the workshop and undertaking preparatory works on board the vessel at times agreed with the ship that do not interfere with its scheduled operations.
The first module contains the scrubber, necessary piping and electronics. The second houses the auxiliary equipment including the pumps, heat exchanger and separators. These can then be tested and optimised in advance of the installation.
The prefabrication process and preparation work are designed to enable a shipyard technical team to attach and link up the two modules as soon as a ship reaches them in the final stage of the retrofit process.
The first installation of this type is already underway for the ro-ro cargo vessel Stena Scotia, which is working with Damen Shiprepair Rotterdam.
In the case of the Stena Scotia, the preparations on board, including steelwork and pipe-fitting, will take place over several weekends during routine overnight stopovers.
“With the need to access the vessel during its regular operations to undertake the preparations, it is vital to work very closely with the owner and crew to make the hours available as productive as possible,” said Stef Loffeld, project manager for ballast water retrofits at Damen Shipyards.
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